Calycoceras (Gentoniceras)

Eucalycoceras leonense (Adkins, 1928), a relative of Calycoceras (Gentoniceras) — not Calycoceras (Gentoniceras) itself

Not Calycoceras (Gentoniceras). This is Eucalycoceras leonense (Adkins, 1928), a relative.

via GBIF · CC0 · via GBIF. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
CalycocerasPBDB
Diet
carnivorePBDB, for Ammonoidea
Life habit
nektonicPBDB, for Ammonoidea
Motility
fast-movingPBDB, for Ammonoidea
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At most 13 million years on record.

Every occurrence read is dated to somewhere between 106.3 Mya and 93.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Cretaceous — about 1 of 12 occurrencesEarly CretaceousLate Cretaceous — about 11 of 12 occurrencesLate Cretaceous106–106 Mya — about 0.1 occurrences106–105 Mya — about 0.1 occurrences105–105 Mya — about 0.1 occurrences105–105 Mya — about 0.1 occurrences105–104 Mya — about 0.1 occurrences104–104 Mya — about 0.1 occurrences104–103 Mya — about 0.1 occurrences103–103 Mya — about 0.1 occurrences103–102 Mya — about 0.1 occurrences102–102 Mya — about 0.1 occurrences102–101 Mya — about 0.1 occurrences101–101 Mya — about 0.1 occurrences101–101 Mya — about 0.1 occurrences101–100 Mya — about 0.7 occurrences100–100 Mya — about 0.7 occurrences100–99 Mya — about 0.7 occurrences99–99 Mya — about 0.7 occurrences99–98 Mya — about 0.7 occurrences98–98 Mya — about 0.7 occurrences98–97 Mya — about 0.7 occurrences97–97 Mya — about 0.7 occurrences97–97 Mya — about 0.7 occurrences97–96 Mya — about 0.7 occurrences96–96 Mya — about 0.7 occurrences96–95 Mya — about 0.7 occurrences95–95 Mya — about 0.7 occurrences95–94 Mya — about 0.7 occurrences94–94 Mya — about 0.7 occurrences106.8 Mya93.4 Mya

12 occurrences of Calycoceras (Gentoniceras) on record, most of them in the Late Cretaceous. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

12 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

9 formations

Craie de Rouen — 48.60°N, 0.63°ECraie de Rouen — 49.44°N, 1.09°EUnnamed Vocontian — 43.73°N, 6.90°ELignites de Traiguera — 40.52°N, 0.30°WGreenhorn Limestone — 44.73°N, 103.73°WFahdène — 35.35°N, 9.23°EGraneros Shale — 38.12°N, 104.87°WChispa Summit — 30.71°N, 104.77°WBeer Head Limestone — 50.83°N, 2.97°WEagle Ford — 31.05°N, 97.47°W

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The named rock units Calycoceras (Gentoniceras) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Calycoceras (Gentoniceras) and its relatives

Late Cretaceous

Where Calycoceras (Gentoniceras) and its relatives were recorded in the Late Cretaceous.

Found in the same rock

89 taxa

The Paleobiology Database records 11 sites for Calycoceras (Gentoniceras), and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

11 references

Each of the 12 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Eucalycoceras leonense (Adkins, 1928)

Source
GBIF
Credit
via GBIF
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Calycoceras (Gentoniceras) was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itCalycoceras through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Thomel 1972)